It's possible that an authenticated user guess other session IDs based on its own. Also it's possible to guess a password reset token or an automated password generated. This issue affects ((OTRS)) Community Edition: 5.0.41 and prior versions, 6.0.26 and prior versions. OTRS; 7.0.15 and prior versions.

References

• https://nvd.nist.gov/vuln/detail/CVE-2020-1773
• https://otrs.com/release-notes/otrs-security-advisory-2020-10/
• http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00038.html
• http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00066.html
• http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00077.html
• https://lists.debian.org/debian-lts-announce/2023/08/msg00040.html